How to Make a Flexible Interaction System in 2 Minutes [C#] [Unity3D] 

For those who want the code itself without the explaining, I have an archive that is in the works in my discord (link in description)

Great job. One key difference between your videos and many others (not all but most): You explain how things are being used and why. This is great for knuckle draggers like myself

incredible tutorial. Very concise, no waffling, explained everything i wanted to know. 5 star review, will come again

Dayumm, lmfao this was way better than creating an if statement for each object

Your vid just solved a problem I've been trying to solve for a week. .....You're getting a shout-out in my next dev log

Thank you very much! Was struggling handling interactions, and you just solved one of my main problems.

This is awesome. I had some kind of Interacting sphere being generated to try to collide with objects, and it was not working consistently. I have a feeling this will work much better

tysm why aren't all tutorials like this also, to anyone stuck, the problem I had before I got it working was the interactor source should be the camera the script is on and the interactable object's collider needs to have "is trigger" checked.

Great video, but how would I implement hover? Like it would say click e to interact if I am hovering over the object. Also how do I set up the InteractSource? Do I use the transform of the Camera? Finally what is a good number for the interactRange? Any answers will be greatly appreciated!

Worked perfectly for my purposes. Thanks.

Extremely well made tutorial! Keep up the work!

For anyone wondering, here's the code: interface Interactable { public void Interact(); } public class IntertheAct : MonoBehaviour { public Transform InteracterSource; public float InteractRange; void Update() { if (Input.GetKeyDown(KeyCode.E)) { Ray r = new Ray(InteracterSource.position, InteracterSource.forward); if (Physics.Raycast(r, out RaycastHit hitInfo, InteractRange)) { if (hitInfo.collider.gameObject.TryGetComponent(out Interactable interactObj)) { interactObj.Interact(); } } } } }

It says the name space IInteractable could not be found, there are no errors in studio code, only in the unity engine.

When I try to interact in game it’s not doing anything and I believe it has something to do the raycast as interact with the camera does not show the raycast

Thanks man, helped out a LOT with my game!

Thanks man! Great knowledge

Sir. For this you got my sub

The only issue I have with this tutorial is an Unassigned Reference Exception for the InteracterSource. Is there a way to fix this?

okay so im trynna do like an open locker door thing but when i make the animator do the open animation it goes okay, but when i try to close it, it still tries to open it even if its already open (i know this bc i also but a debug.log statment telling me if the door is opened and it always comes back as opened) so is there any solution to this?

Can i ask how to make it work in one script, i has disable the first script then when i use the second one, it active the first one even the first one is disable, when i private the Interact function it become error, thanks

For those of You, If this didn`t Work, Try Like After writing full interaction code, then put the code in Main Camera and then, Reference Main Camera, Like By Dragging it in Hierachy, and after that, the function is all good to run, Sometimes, There should be function which would need you to enable text like You can interact or Pickup or something, For that case this is code, Directly in update, and then follow the same steps like creating interface and then reference it to the object script you want and that`s it Ray rayEverytime = new Ray(interactionSource.position, interactionSource.forward); if(Physics.Raycast(rayEverytime,out RaycastHit hitInfoEverytime, interactionRange)) { if (hitInfoEverytime.collider.gameObject.TryGetComponent(out IInteractableEverytime internObj)) { internObj.InteractEverytime(); } } Thank you for the awesome Tutorial

what to put in interactorSource?

Super helpful, thank you

what do you put for the Interactor Source

If your script says public is not a valid term Just remove it and it'll still work

Wow great video loved it.

How do I make it show text when I am in range?

SIMPLE ERROR FIX: people that have abstract script error can make a new script of IInteractable and interface to public interface if you have any no use error then check for capital letters

If I add multiple Interactions to my Object it only executes the first in the component hirachie. Is there a way to execute all, cause I want to reuse these scripts on other objects say a sign and a note can both use text being shown on interaction.

How would you put a countdow timer into this system?

Suppose I use a coroutine with a WaitUntil that waits until F is pressed in my Interact. In that case, it will still execute when I am no longer looking at the object [which makes sense], any ideas on how I "cancel" the Interaction or the Coroutine after it´s started? Because I don´t want to do the whole ray-checking thing in my Interact scripts, as that would kinda defeat the purpose of the interface and would bloat scripts.

my code just says error and tells me that the interactorSource is empty

SO, I've done everything here. Dragged script to camera, made a cube, dragged randgenerator script to it. Set the InteractorSource as Main Camera, set the range to 5. Script's are word for word, character for character. No dice, no output. Nothing happens.

I'm having an issue and I cant figure out why, I have the raycast script and everything and it was working and then I made a new object and tested the number generator on it and it wouldnt work but the original objects did anyone know why?

i just got back into coding and i used ur tutorial for picking up items, but I cant figure out how to make it to where the object faces the camera. Can anyone help?

I kinda like these shawty tutorials

I am getting errors about script class not being found when I try to add the script. any advice?

I seem to be having an issue where Unity is telling me that InteractorSource.Position doesn't exist (at what should be line 22), could someone give me some pointers?

Trying to add script to MainCamera and it says this, any ideas? "Can't add script behaviour 'Interactor'. The script class can't be abstract!"

I don’t have some of the buttons for the script

thank you very much!!

Really helpfull tysm

I was trying to interact with a door but nothing was happening, then I realized the door didn't have a collider... 😳 (shared this incase any beginner struggled like me 😅)

your tutorials never work for me for some reason

Thanks :D

Can this be used in mobile? Thank you

can I use it for a 3d person game?

version mobile?

wohhhoa

Didn't work.

sero izlendi

WHATTA HEK BRO İ HATE WACH İNG OTHER TTORAL SHT AFTER SEENİNG THİS

How did you do that effect where the coin from world position went to the coin ui position

using System.Collections; using System.Collections.Generic; using UnityEngine; interface IInteractable { public void Interact(); } public class Interactor : MonoBehaviour { public Transform InteractorSource; public float InteractRange; void Update() { if (Input.GetKeyDown(KeyCode.E)) { Ray r = new Ray(InteractorSource.position, InteractorSource.forward); if (Physics.Raycast(r, out RaycastHit hitInfo, InteractRange)) { if (hitInfo.collider.gameObject.TryGetComponent(out IInteractable interactObj)) { interactObj.Interact(); } } } } }

Why exactly did we add the interface?